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Phase Transitions in $KLiSO_4$ and $RbLiSO_{4+}$ : An Infrared Spectroscopic Investigation

Varma, Vijay and Bhattacharjee, Ramendu and Fernandes, JR and Rao, CNR (1990) Phase Transitions in $KLiSO_4$ and $RbLiSO_{4+}$ : An Infrared Spectroscopic Investigation. In: Solid State Communications, 76 (5). pp. 627-630.

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Abstract

Infrared spectroscopy shows the occurrence of a transition to a phase of lower symmetry on cooling $KLiSO_4$ below 170K, but there appears to be no change in the point group symmetry of the $SO_4^{2-}$ ion across the $C_6^6-C_4_{3v}$ transition around 200K. Infrared spectra characteristic of the various phases (I–V) of $RbLiSO_4$ have been obtained. True monoclinic order in $RbLiSO_4$ seems to be present only in the room-temperature phase (V). Bands due to the $LiO_4$ units in both these solids have been studied through the phase transitions.

Item Type: Journal Article
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Additional Information: Copyright for this article belongs to Elsevier Science Ltd.
Keywords: Phase transitions;KLiSO4;RbLiSO4+;Infrared spectroscopy
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 13 Feb 2008
Last Modified: 19 Sep 2010 04:41
URI: http://eprints.iisc.ernet.in/id/eprint/12465

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